This document provides an overview of lubricating oils and the lubricant blending process. It defines lubricants and lubrication mechanisms. It describes the types of base oils (mineral and synthetic) and additives used in lubricants. The key equipment in a lube oil blending plant and the blending process are outlined, including base oil and additive charging, blending, and quality control testing. Key tests described are kinematic viscosity, viscosity index, pour point, and flash/fire point determination. In summary, the document introduces lubricating oils, their composition and properties, and the blending process used to produce finished lubricant products.
This document summarizes the properties and applications of POLYLUB GLY 151, 501, and 801 lubricating greases. The greases are based on synthetic hydrocarbon oil, mineral oil, and special lithium soap. They are suitable for lubricating plastic components against metal or other plastic surfaces in applications like vehicles, gears, seals, and pneumatic equipment. The greases provide benefits such as approval by automotive manufacturers, contribution to noise reduction, and detection of lubricant with UV light.
This brochure provides an overview of Royal Petro Energy and its bitumen products. It discusses the company's history beginning in 2005 and outlines its operations including oil trading, refining, storage terminals, and more. The brochure also provides details on the types of bitumen grades produced like penetration graded, cut backs, emulsions, and oxidized bitumens. It includes specifications and applications for each product type.
Molykote® G-0100 is a multipurpose bearing grease that provides wide temperature range protection from -40 to +170°C, low noise performance, and excellent corrosion prevention. It is mineral oil-based and thickened with a polyurea system. Molykote® G-0100 offers premium rust prevention, superior shear and oxidation stability due to its polyurea thickener, and long grease life.
In pursuit of excellence, NPL has introduced its brand Velvex For Total Industrial Lubricant
Solutions to the Industrial oil users. Keeping customer benefits and service at the forefront,
Velvex has been developed to provide complete satisfaction with simultaneously offering value for money to its esteemed customers.
RENOLIN SS100 is a semi-synthetic compressor lubricant designed for use in reciprocating, rotary, and screw compressors. It contains additives that provide protection to compressor components and enhance the product life by reducing corrosion and oxidation. RENOLIN SS100 reduces carbon build-up leading to reduced maintenance costs, allows for extended drain periods, improves safety by reducing fire risk, and is more cost effective than fully synthetic alternatives.
(www.witcollubricants.com) Witmans Industries Pvt. Ltd. is an ISO 9001:2008 certified business entity engaged in manufacturing, supplying, trading and exporting a comprehensive assortment of Industrial Oil, Greases, Paints and Waxes. Our range is developed in strict accordance with the global quality standards by utilizing premium quality raw material, modern machinery & genuine techniques. Owing to the qualitative fabrications, our range is widely appreciated for high thermal stability, rust, corrosion, wear, foam & moisture resistance and durability.
MERCO was established in 2004 in Bahrain to manufacture bitumen products. It operates the largest bitumen cut-back manufacturing facility in Bahrain. MERCO produces various grades of bitumen and specialized packaging for bitumen to be shipped worldwide. In addition to manufacturing, MERCO also offers services like plant maintenance, oil storage, material packaging, and tank cleaning.
This document provides an overview of lubricating oils and the lubricant blending process. It defines lubricants and lubrication mechanisms. It describes the types of base oils (mineral and synthetic) and additives used in lubricants. The key equipment in a lube oil blending plant and the blending process are outlined, including base oil and additive charging, blending, and quality control testing. Key tests described are kinematic viscosity, viscosity index, pour point, and flash/fire point determination. In summary, the document introduces lubricating oils, their composition and properties, and the blending process used to produce finished lubricant products.
This document summarizes the properties and applications of POLYLUB GLY 151, 501, and 801 lubricating greases. The greases are based on synthetic hydrocarbon oil, mineral oil, and special lithium soap. They are suitable for lubricating plastic components against metal or other plastic surfaces in applications like vehicles, gears, seals, and pneumatic equipment. The greases provide benefits such as approval by automotive manufacturers, contribution to noise reduction, and detection of lubricant with UV light.
This brochure provides an overview of Royal Petro Energy and its bitumen products. It discusses the company's history beginning in 2005 and outlines its operations including oil trading, refining, storage terminals, and more. The brochure also provides details on the types of bitumen grades produced like penetration graded, cut backs, emulsions, and oxidized bitumens. It includes specifications and applications for each product type.
Molykote® G-0100 is a multipurpose bearing grease that provides wide temperature range protection from -40 to +170°C, low noise performance, and excellent corrosion prevention. It is mineral oil-based and thickened with a polyurea system. Molykote® G-0100 offers premium rust prevention, superior shear and oxidation stability due to its polyurea thickener, and long grease life.
In pursuit of excellence, NPL has introduced its brand Velvex For Total Industrial Lubricant
Solutions to the Industrial oil users. Keeping customer benefits and service at the forefront,
Velvex has been developed to provide complete satisfaction with simultaneously offering value for money to its esteemed customers.
RENOLIN SS100 is a semi-synthetic compressor lubricant designed for use in reciprocating, rotary, and screw compressors. It contains additives that provide protection to compressor components and enhance the product life by reducing corrosion and oxidation. RENOLIN SS100 reduces carbon build-up leading to reduced maintenance costs, allows for extended drain periods, improves safety by reducing fire risk, and is more cost effective than fully synthetic alternatives.
(www.witcollubricants.com) Witmans Industries Pvt. Ltd. is an ISO 9001:2008 certified business entity engaged in manufacturing, supplying, trading and exporting a comprehensive assortment of Industrial Oil, Greases, Paints and Waxes. Our range is developed in strict accordance with the global quality standards by utilizing premium quality raw material, modern machinery & genuine techniques. Owing to the qualitative fabrications, our range is widely appreciated for high thermal stability, rust, corrosion, wear, foam & moisture resistance and durability.
MERCO was established in 2004 in Bahrain to manufacture bitumen products. It operates the largest bitumen cut-back manufacturing facility in Bahrain. MERCO produces various grades of bitumen and specialized packaging for bitumen to be shipped worldwide. In addition to manufacturing, MERCO also offers services like plant maintenance, oil storage, material packaging, and tank cleaning.
Nitrile rubber (NBR) is produced from a copolymer of acrylonitrile and butadiene. It is oil-resistant and commonly used in fuel hoses, gaskets, and other products requiring oil resistance. NBR is produced via emulsion polymerization of acrylonitrile and butadiene monomers in water, followed by coagulation of the polymer latex to form crumb rubber. Properties of NBR depend on the percentage of acrylonitrile, with higher percentages providing better oil and chemical resistance but reduced flexibility at lower temperatures.
New Silicone Copolymer Lubricants - the alternative to PFPE lubricationmolykotetl
Molykote’s groundbreaking Silicone Copolymer research provides a fit-for-purpose alternative to PFPE lubrication in low end applications. In a presentation at the 20th International Colloquium Tribolgy in January 2016, Molykote unveiled innovative new research into Silicone Copolymers set to revolutionise the lubrication industry. Using a unique combination of Phenyl and Fluoro Silicone groups Molykote has created a new class of lubricants with both high thermal stability and elevated wear resistance
Klüberlub BE 41-1501 is a heavy-duty grease developed for large, low-speed rolling bearings subjected to high loads. It has a high base oil viscosity, excellent wear protection, and contains solid lubricants for use under starved lubrication conditions. Testing showed the grease meets requirements for very high load and shock applications in industries like material handling. It is suitable for lubricating the bearings in machines like roller presses and rotary crushers.
Reinforcement of Bakelite Moulding Powder in Acrylonitrile Butadiene Rubber (...Scientific Review SR
The document discusses a study that compares the effects of adding two different phenolic resins - cashew nut oil modified phenol-formaldehyde resin (CN-m-PF) and Bakelite moulding powder (BMP) - to carbon black filled acrylonitrile butadiene rubber (NBR). The addition of both resins increases hardness and modulus but decreases some mechanical properties like tensile strength and elongation at break. CN-m-PF provides better processability and mechanical properties than BMP at the same content. However, BMP can also enhance stiffness without processing issues and may be preferred due to its lower cost. The document reports results of various tests measuring properties like curing characteristics, hardness, tensile strength,
This document describes synthetic greases ISOFLEX TOPAS NB 52 and NB 152 produced by Klüber Lubrication for rolling and plain bearings. The greases use a special barium complex soap thickener that provides good load capacity and resistance to water. NB 152 has a service temperature range of -40°C to 150°C while NB 52's range is -50°C to 120°C. Both greases protect against corrosion and oxidation and have many applications including wheel bearings, fans, and plastic components. They are supplied in aerosol cans, cartridges, cans, and buckets for use via spatula, brush or grease gun.
RENOLIT RED RUBBER GREASE is a specialty grease manufactured from vegetable oils thickened with a non-soap thickener and dyed red for identification. It retains its consistency at high temperatures and does not change under working conditions or temperature fluctuations. The grease is designed for use in automotive brake assemblies and other rubber and hydraulic components where it provides good mechanical stability, compatibility with natural and synthetic rubbers, and resistance to hydrocarbons and chemicals.
Molykote lubricants from Dow Corning are suitable for a wide range of applications and temperatures. They offer six classes of lubricants: greases, pastes, oils, compounds, dispersions, and coatings. Molykote lubricants are formulated to withstand harsh environments and temperature extremes while maximizing equipment protection. Dow Corning has over 60 years of lubrication expertise and uses a global research network to develop high-performance lubricants.
RENOLIT CX-HT2 is a high load, high temperature, water resistant grease based on a calcium complex soap with selected base oils. It features excellent work stability, good anti-wear properties, and outstanding corrosion protection even in salt water. RENOLIT CX-HT2 contains solid lubricants to improve anti-wear under high loads and is used for lubricating heavily loaded bearings and gears in high temperature applications such as cement plants, kilns, and furnaces.
Sable Corp has two divisions, petroleum and packaging, and is accredited with a Level 2 BEE rating. It sources petroleum products from LUKOIL Lubricants and targets state enterprises as customers. Sable Corp offers various petroleum and packaging products, including process oils, railroad oils, hydraulic oils, gear oils, greases, shrink film, plastic bags and sheeting, stretch film, corrugated boxes, and bubble wrap. The company prides itself on its service and turning orders around quickly.
RENOLIN MR is a series of special lubricating and hydraulic fluids with excellent corrosion protection properties. They contain zinc and are used in hydraulic systems where standard oils fail. RENOLIN MR has outstanding contaminant-removing and transportation properties, low friction coefficients, and protects against wear. Testing shows RENOLIN MR has excellent corrosion protection on steel and nonferrous metals, even in the presence of water.
Klüberoil 4 UH1 N is a synthetic gear and multipurpose oil for use in the food and pharmaceutical industries. It meets various industry standards including being registered as NSF H1 and FDA compliant. It has a high oxidation stability and resistance to wear and corrosion, providing long service life. The product is available in various viscosity grades suitable for different applications and temperatures in the food and pharmaceutical sectors.
RENOLIT CXI 2 is a calcium sulphonate complex grease developed for heavily loaded rolling or plain bearings operating under severe conditions such as in steel mills, mines, and construction equipment. It shows very good water resistance, corrosion protection, and oil separation properties making it suitable for applications requiring high performance in water resistance and working stability. RENOLIT CXI 2 is easily pumpable and can be fed through centralized lubrication systems.
The document provides information about nitrile rubber (NBR), including:
1) NBR was first developed in the 1930s and is a copolymer of butadiene and acrylonitrile, known for its oil resistance.
2) Key properties of NBR include resistance to oils, solvents, fuels, abrasion, and heat.
3) The production process involves polymerizing butadiene and acrylonitrile monomers to form latex, which is then coagulated, washed, dried, and vulcanized.
SYNTHESIS AND CHARACTERIZATION OF CASTOR OIL EXTENDED EPOXIDISED NATURAL RUBBERMOHAMMADANSAR12
This document discusses the preparation and properties of castor oil extended modified natural rubber by epoxidation. The objectives were to optimize epoxidized natural rubber synthesis conditions, study the effect of castor oil on properties, and evaluate potential in tire compounds. Natural rubber latex was epoxidized using varying temperatures and times. Castor oil was then added in amounts from 10-40 phr. Characterization showed epoxidation increased with temperature and time. Castor oil improved properties like rolling resistance and reduced filler-filler interactions. The epoxidized natural rubber also acted as a compatibilizer and coupling agent in silica filled NR/NBR blends, improving properties.
Oils and their relationship to refrigeration systems -RETA conference 2015Manuel Muñoz Alonso
This document summarizes a presentation on lubricants used in refrigeration systems. It discusses different lubricant types and their properties, compatibility with common refrigerants like CO2, ammonia, and hydrocarbons. It also provides a case study on monitoring the condition of an alkylbenzene lubricant used in an ammonia system over several years, finding the lubricant maintained its properties with no degradation and wear particles stabilized after an initial increase.
Mobil Jet Oil 254 is a synthetic lubricant designed for aircraft gas turbine engines. It has superior thermal and oxidation stability compared to earlier generation lubricants, helping to prevent deterioration and deposits. It maintains low viscosity at low temperatures for reliable lubrication during starting, while resisting evaporation at high operating temperatures. Testing shows it reduces oxidation and deposit formation compared to typical turbine oils. It is compatible with engines and materials commonly used in gas turbine construction.
The document discusses transformer oil analysis. It describes the key components of a transformer's insulating system as the oil and paper. Transformer oil classifications include naphthenic oil, paraffinic oil, and silicon oil. The document outlines specifications for new and in-service transformer oils according to various standards. It explains the importance of various oil properties like appearance, acidity, dielectric strength, and oxidation stability and how they impact transformer performance and life.
Mobil Jet Oil II is a synthetic gas turbine lubricant recommended for aircraft jet engines. It has excellent thermal and oxidation stability, resisting deterioration up to 204°C. It protects against deposit formation, has good heat transfer properties, and a low evaporation rate. Mobil Jet Oil II meets military specifications and is approved by major engine and accessory manufacturers.
This document provides information on Kl berlub BE 41- 542, a heavy-duty grease for highly loaded rolling bearings. It is based on mineral oil with lithium soap and additives that provide excellent wear protection, water resistance, and adhesion. It is suitable for applications with service temperatures up to 140°C, including load rollers, crane wheels, hammer mills, and rolling bearings under shock or pulsating stress. Test results show it provides a service life over 100 hours on rolling bearings and low rolling element and cage wear.
Nitrile rubber (NBR) is produced from a copolymer of acrylonitrile and butadiene. It is oil-resistant and commonly used in fuel hoses, gaskets, and other products requiring oil resistance. NBR is produced via emulsion polymerization of acrylonitrile and butadiene monomers in water, followed by coagulation of the polymer latex to form crumb rubber. Properties of NBR depend on the percentage of acrylonitrile, with higher percentages providing better oil and chemical resistance but reduced flexibility at lower temperatures.
New Silicone Copolymer Lubricants - the alternative to PFPE lubricationmolykotetl
Molykote’s groundbreaking Silicone Copolymer research provides a fit-for-purpose alternative to PFPE lubrication in low end applications. In a presentation at the 20th International Colloquium Tribolgy in January 2016, Molykote unveiled innovative new research into Silicone Copolymers set to revolutionise the lubrication industry. Using a unique combination of Phenyl and Fluoro Silicone groups Molykote has created a new class of lubricants with both high thermal stability and elevated wear resistance
Klüberlub BE 41-1501 is a heavy-duty grease developed for large, low-speed rolling bearings subjected to high loads. It has a high base oil viscosity, excellent wear protection, and contains solid lubricants for use under starved lubrication conditions. Testing showed the grease meets requirements for very high load and shock applications in industries like material handling. It is suitable for lubricating the bearings in machines like roller presses and rotary crushers.
Reinforcement of Bakelite Moulding Powder in Acrylonitrile Butadiene Rubber (...Scientific Review SR
The document discusses a study that compares the effects of adding two different phenolic resins - cashew nut oil modified phenol-formaldehyde resin (CN-m-PF) and Bakelite moulding powder (BMP) - to carbon black filled acrylonitrile butadiene rubber (NBR). The addition of both resins increases hardness and modulus but decreases some mechanical properties like tensile strength and elongation at break. CN-m-PF provides better processability and mechanical properties than BMP at the same content. However, BMP can also enhance stiffness without processing issues and may be preferred due to its lower cost. The document reports results of various tests measuring properties like curing characteristics, hardness, tensile strength,
This document describes synthetic greases ISOFLEX TOPAS NB 52 and NB 152 produced by Klüber Lubrication for rolling and plain bearings. The greases use a special barium complex soap thickener that provides good load capacity and resistance to water. NB 152 has a service temperature range of -40°C to 150°C while NB 52's range is -50°C to 120°C. Both greases protect against corrosion and oxidation and have many applications including wheel bearings, fans, and plastic components. They are supplied in aerosol cans, cartridges, cans, and buckets for use via spatula, brush or grease gun.
RENOLIT RED RUBBER GREASE is a specialty grease manufactured from vegetable oils thickened with a non-soap thickener and dyed red for identification. It retains its consistency at high temperatures and does not change under working conditions or temperature fluctuations. The grease is designed for use in automotive brake assemblies and other rubber and hydraulic components where it provides good mechanical stability, compatibility with natural and synthetic rubbers, and resistance to hydrocarbons and chemicals.
Molykote lubricants from Dow Corning are suitable for a wide range of applications and temperatures. They offer six classes of lubricants: greases, pastes, oils, compounds, dispersions, and coatings. Molykote lubricants are formulated to withstand harsh environments and temperature extremes while maximizing equipment protection. Dow Corning has over 60 years of lubrication expertise and uses a global research network to develop high-performance lubricants.
RENOLIT CX-HT2 is a high load, high temperature, water resistant grease based on a calcium complex soap with selected base oils. It features excellent work stability, good anti-wear properties, and outstanding corrosion protection even in salt water. RENOLIT CX-HT2 contains solid lubricants to improve anti-wear under high loads and is used for lubricating heavily loaded bearings and gears in high temperature applications such as cement plants, kilns, and furnaces.
Sable Corp has two divisions, petroleum and packaging, and is accredited with a Level 2 BEE rating. It sources petroleum products from LUKOIL Lubricants and targets state enterprises as customers. Sable Corp offers various petroleum and packaging products, including process oils, railroad oils, hydraulic oils, gear oils, greases, shrink film, plastic bags and sheeting, stretch film, corrugated boxes, and bubble wrap. The company prides itself on its service and turning orders around quickly.
RENOLIN MR is a series of special lubricating and hydraulic fluids with excellent corrosion protection properties. They contain zinc and are used in hydraulic systems where standard oils fail. RENOLIN MR has outstanding contaminant-removing and transportation properties, low friction coefficients, and protects against wear. Testing shows RENOLIN MR has excellent corrosion protection on steel and nonferrous metals, even in the presence of water.
Klüberoil 4 UH1 N is a synthetic gear and multipurpose oil for use in the food and pharmaceutical industries. It meets various industry standards including being registered as NSF H1 and FDA compliant. It has a high oxidation stability and resistance to wear and corrosion, providing long service life. The product is available in various viscosity grades suitable for different applications and temperatures in the food and pharmaceutical sectors.
RENOLIT CXI 2 is a calcium sulphonate complex grease developed for heavily loaded rolling or plain bearings operating under severe conditions such as in steel mills, mines, and construction equipment. It shows very good water resistance, corrosion protection, and oil separation properties making it suitable for applications requiring high performance in water resistance and working stability. RENOLIT CXI 2 is easily pumpable and can be fed through centralized lubrication systems.
The document provides information about nitrile rubber (NBR), including:
1) NBR was first developed in the 1930s and is a copolymer of butadiene and acrylonitrile, known for its oil resistance.
2) Key properties of NBR include resistance to oils, solvents, fuels, abrasion, and heat.
3) The production process involves polymerizing butadiene and acrylonitrile monomers to form latex, which is then coagulated, washed, dried, and vulcanized.
SYNTHESIS AND CHARACTERIZATION OF CASTOR OIL EXTENDED EPOXIDISED NATURAL RUBBERMOHAMMADANSAR12
This document discusses the preparation and properties of castor oil extended modified natural rubber by epoxidation. The objectives were to optimize epoxidized natural rubber synthesis conditions, study the effect of castor oil on properties, and evaluate potential in tire compounds. Natural rubber latex was epoxidized using varying temperatures and times. Castor oil was then added in amounts from 10-40 phr. Characterization showed epoxidation increased with temperature and time. Castor oil improved properties like rolling resistance and reduced filler-filler interactions. The epoxidized natural rubber also acted as a compatibilizer and coupling agent in silica filled NR/NBR blends, improving properties.
Oils and their relationship to refrigeration systems -RETA conference 2015Manuel Muñoz Alonso
This document summarizes a presentation on lubricants used in refrigeration systems. It discusses different lubricant types and their properties, compatibility with common refrigerants like CO2, ammonia, and hydrocarbons. It also provides a case study on monitoring the condition of an alkylbenzene lubricant used in an ammonia system over several years, finding the lubricant maintained its properties with no degradation and wear particles stabilized after an initial increase.
Mobil Jet Oil 254 is a synthetic lubricant designed for aircraft gas turbine engines. It has superior thermal and oxidation stability compared to earlier generation lubricants, helping to prevent deterioration and deposits. It maintains low viscosity at low temperatures for reliable lubrication during starting, while resisting evaporation at high operating temperatures. Testing shows it reduces oxidation and deposit formation compared to typical turbine oils. It is compatible with engines and materials commonly used in gas turbine construction.
The document discusses transformer oil analysis. It describes the key components of a transformer's insulating system as the oil and paper. Transformer oil classifications include naphthenic oil, paraffinic oil, and silicon oil. The document outlines specifications for new and in-service transformer oils according to various standards. It explains the importance of various oil properties like appearance, acidity, dielectric strength, and oxidation stability and how they impact transformer performance and life.
Mobil Jet Oil II is a synthetic gas turbine lubricant recommended for aircraft jet engines. It has excellent thermal and oxidation stability, resisting deterioration up to 204°C. It protects against deposit formation, has good heat transfer properties, and a low evaporation rate. Mobil Jet Oil II meets military specifications and is approved by major engine and accessory manufacturers.
This document provides information on Kl berlub BE 41- 542, a heavy-duty grease for highly loaded rolling bearings. It is based on mineral oil with lithium soap and additives that provide excellent wear protection, water resistance, and adhesion. It is suitable for applications with service temperatures up to 140°C, including load rollers, crane wheels, hammer mills, and rolling bearings under shock or pulsating stress. Test results show it provides a service life over 100 hours on rolling bearings and low rolling element and cage wear.
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Nitrile Rubber and rubber system of materials
1. NITRILE RUBBER
• Nitrile rubbers are copolymers having
acrylonitrile and butadiene monomers ratios
in the range of 18/82 to 45/55.
H H CN
H2C – C = C - CH2 x [ - H2C – CH2 -]
butadiene Acrylonitrile
5. Modifications of Nitrile
rubbers
1. NBR/PVC blends:
Combines the ozone/weathering properties of PVC with elastomeric
properties of NBR. (Rollers, Hoses, Cable Jackets, Gas Tubing etc.)
2. Crosslinked NBR:
Pre-crosslinked during manufacture for better processing
(LOW EXTRUSION DIE-SWELL, LOW CALENDER SHRINKAGE,
SMOOTH SURFACE)
3. Oil-extended NBR.
Grades extended with DOP plasticizer (usually 50 phr)
6. 4. Carboxylated NBR:
Polymerized with an acidic organic monomer. Gives hard and tough,
abrasion resistant vulcanizates, with lower flexibility and resilience.
(USED IN TEXTILE COTS & APRONS, CONVEYOR BELTS,
INDUSTRIAL SOLES, etc.)
5. Powdered NBR:
Used mainly in plastics modification.
7. HYDROGENATED NITRILE
RUBBER (HNBR)
Produced by the catalytic hydrogenation of NBR
Manufacturers : Bayer AG - Trade Name: Therban
: Zeon Chemical - Trade Name: Zetpol
Gradation : ACN Content
Mooney Viscosity
Unsaturation – Fully saturated (<1% unsaturation)
Partially unsaturated (2-6% Saturation)
8. Properties : Very good physical properties – high T.S., abrasion resistance.
: Very good resistance to heat, oxygen, ozone and weathering
compared to NBR.
: Very good resistance to oils containing aggressive additives, crude
oils with H2S and amines.
Applications : Automotive timer belts & poly V-belts
: Oil – seals.
: Oil Industry – blowout preventers- packer seals, drill pipe
protectors, etc.
9. Butyl Rubber
Butyl rubber is the copolymer of isobutylene with a small amount of
isoprene.
H CH3 H CH3 H CH3 H CH3 H CH3 CH3 H
-C – C = C – C – C – C – C - -C – C – C – C – C = C – C -
H H H CH3 H CH3 H CH3 H CH3 H H
Isoprene Isobutylene
Mol. Wt. 5000
11. The basic formulation of Butyl Rubber inner tube
Butyl Elastomer 100
Zno 5
St. acid 2
GPF 70
Parafine Oil 25
Sulfur 2.0
TMTD 1.0
MBT 0.5
Cure range – 5’ at 350°F.
12. This can be cured by resin also & tentative formulation for Tire-
curing bladder compounds are as under:
1 2
Exxon Butyl 268 10
0
10
0
Neoprene GN 5 ---
HAF Carbon black 50 50
Process oil 5 5
Reactive phenol formal dehyde Resin a
10 -
Brominated phenol b
Formaldehyde Resin --- 10
a Amberol St. 137
b : Sp –1055 Schenectady chemical co.
Properties of Butyl:
a) Good Ozone and weather resistance
b) Good vibration Damping characteristic
c) Good air permeability
13. Modified Butyl Rubber
Halogenated butyl is the elastomeric isobutylene - isoprene
copolymer containing reactive halogen.
- Chlorobutyl
- Bromobutyl
Halogen atoms are in isoprene units shown as under
CH2
CH2 – C - CH - CH2
Br
Curing agent : Zinc Oxide and Stearic acid
Used as – blend with unsaturated rubber.
Application: - 1) Moulded & extruded product
2) Tyre inner liner.
![NITRILE RUBBER
• Nitrile rubbers are copolymers having
acrylonitrile and butadiene monomers ratios
in the range of 18/82 to 45/55.
H H CN
H2C – C = C - CH2 x [ - H2C – CH2 -]
butadiene Acrylonitrile](https://image.slidesharecdn.com/nitrilerubber-240506114654-818bdd24/85/Nitrile-Rubber-and-rubber-system-of-materials-1-320.jpg)
